At rank two, there are again a finite number of possibilities for \(\Delta _{u_1}\)  and \(\Delta _{u_2}\) . In fact, now there are constraints not only on the individual scaling dimensions, but also on the allowed pairs. In total, there are 79 allowed pairs, the full list of which is provided in Table REF  of Appendix  (note that the results here follow the revised analysis given in [1]}, differing slightly from those in [2]}).
This analysis can be extended, with enough effort and dedication, to any desired rank, though the number of allowed r-tuples increases considerably.
